Railway-frog



(No Model.)

, 2 Sheets-Sheet 1. I. A. PERRY.

RAILWAY FROG.

Patented Man 3, 1885.

an ry x I 7 MR J l! 2 Sheets-Sheet, 2, I. A. PERRY.

RAILWAY FROG.

(No Model.)

Patented Mar. 3, 1885.

NlTE STATES ISAAC A. PERRY, OF WILMINGTON, DELAIVARE.

RAI LWAY- FROG.

SPECIFICATION forming part of Letters Patent No. 313,368, dated March 3,1885.

Application filed July 7, 1884. (No model.)

To all whom it may concern..-

Be it known that 1, Isaac A. PERRY, a citizen of the United States, andresiding in \Vilmington, Delaware, haveinvented certain Improvements inRailway-Frogs, ofwhich the following is a specification.

The object of my invention is to so construct a frog for railroads as todispense with fastening bolts and nuts, and provide for the readyapplication of the frog to its place or the ready removal of any portionof the frog for renewal or repairs. This object I attain in the mannerhereinafter set forth, reference being had to the accompanying drawings,in which Figure 1, Sheet 1, is a plan view of a railroad-frog with myimprovements; Fig. 2, a longitudinal section on the line 1 2, Fig. 1;Figs. 3, 4, and 5, transverse sections, respectively, on the lines 3 4,5 6, and 7 8, Fig. 1; Fig. 6, Sheet 2, aperspective view of the parts ofthe frog detached from each other; and Fig. 7, a view illustrating amodification of part of the invention.

A is the baseof the frog, which may be made of cast-iron, malleableiron, wroughtiron, or steel, as desired, and which is spiked orotherwise secured to the cross-ties of the track, and to this base aresecured thepoint B and wing-rails D D of the frog. The point B comprisestwo partsnamely, the tongue a and rear block, b, the latter havingbeveled projections d d, adapted to beveled recesses e e in the base A,as shown in Fig. 2, so that the block can only be introduced into andremoved from its position in the inclined direction shown by thearrow'in Fig. 2, all vertical, lateral, or direct longitudinal movementof the block being prevented.

In Fig. 2 the beveled projection d forms part of a key, f, fitted to anundercut recess in the under side of the block b,- but both projectionsmay, if desired, form part of the block, as in Fig. 7. The tongue a ofthepoint of the frog has at the front end a toe, g, which is thrust intoan undercut recess, g, in the base A, and is firmly held in positionthereby, the rear end of the tongue (0 abutting against the front end ofthe block b, and being held in position vertically by a transverse key,h, adapted to key-seats i z in the adjacent ends of these parts, anddisplacement of the key is prevented by a projection, 7a, on

the base, and a stopplate, 7c, fitted into a recess in the base andretained by aspike, t, or suitable fastening. The wing-rails D areconfined by transverse clamp-bars F G and H H, the bars F and G beingadapted to recesses p and q in the base A, and the bar F to a recess,

w, in the point B. The bar H has on the under side a circularprojection, m, adapted to a recess, m, in the base, this projection mbeing concentric with the confining-bolt n, by which the clamp-plates HH are secured together and to the base-plate. The proj ectionm serves,with the bolt n, as a bearing on which the wing-rails can swinglaterally, as usual, to prevent excessive wear of the point of the frog.The bolt n is prevented from becoming loose by a key, 8, driven throughan opening in thebase and through an opening near the lower end of thebolt, as shown in Fig. 2, and when the point is removed the removal ofthis key is all that is necessary-to release the wingrails from thebase, when the removal of the same or of any of the parts connectedtherewith becomes necessary. The removal of the spike t is all that isrequired to release the pointof the frog, the parts, however, being soarranged that when in place all parts of said point are firmly andsolidly secured to the base. As a consequence of this constructionrenewal of any of the parts of the frog can be effected in a very shorttime and with very little labor. WVhen the base of the frog is made ofplate iron or steel, the necessary guide-openings and recesses may beformed therein by cutting and bending the plate at the desired points.

I claim as my invention- 1. The combination of the base with the pointmade of two parts, a and I), having projections adapted to undercutrecesses in the base, and with a transverse key, h, adapted to recessesin the two parts of the point, as set forth.

2. The combination of the base, the two parts a and b of the point, thetransverse key h, retaining projection is, and detachable plate k, asset forth.

3. The combination of the wing-rails with the transverse clamp-bars F,G, and H, as set forth.

4. The combination of the base having a recess, m, the wing-rails D, andthe clamp bar H, having a projection, m, adapted to the In testimonywhereof I have signed my name recess, and a central confining-bolt, n,as set to this specification in the presence of two subforth. scribingwitnesses.

5. The combination of the point B, having 5 a recess, w, with thewing-rail structure hav- Witnesscs: ing a bar, F, adapted to saidrecess, as set CHARLES L. WILKINs, forth.

J osnrn W. VANDEGRIFT.

ISAAC A. PERRY.

